Hat styles for round faces

[Bibithree]

Pretty much as the title says really, I have a round face and need a hot for a wedding ... what sort of styles should I look for?

I quite often try hats on in JL when I'm in there, pick the ones I like the look of and they all look terrible, I put them back and decide I am just not a hat person.

BUT I will need one for said wedding. Don't know what i'm wearing yet, just wondering what sort of shape I should try on so I don't look in the mirror shudder and leave the shop.

TIA

why not get a silk flower instead

or a hairband

or a fascinator

Sorry I somehow double threaded, the 'active' one is here

I have been told by the bride that it's the "law" of her church that women wear hats don't know if that extends to flowers/fascinators...